Finding the Fourth Proportional to 1,860,249,176.70, 2,790,373,765.05 and 930,440,003.10
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Solution
The fourth proportional to 1,860,249,176.70, 2,790,373,765.05 and 930,440,003.10 is: 1,395,660,004.65
Step by Step Solution
- Step 1: Write the proportion equation
1,860,249,176.70 : 2,790,373,765.05 = 930,440,003.10 : x - Step 2: Convert to fraction form
1,860,249,176.70/2,790,373,765.05 = 930,440,003.10/x - Step 3: Cross multiply
1,860,249,176.70x = 2,790,373,765.05 × 930,440,003.10 - Step 4: Simplify right side
1,860,249,176.70x = 2,596,275,374,603,280,896 - Step 5: Solve for x
x = 2,596,275,374,603,280,896/1,860,249,176.70 - Step 6: Final answer
x = 1,395,660,004.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.